A Technical & Economic Evaluation ofInertial Response from Wind Generators and Synchronous Condensers

Ha Thi Nguyen*, Meadhbh Ní Chléirigh, Guangya Yang

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Frequency stability in today’s power systems has become more critical than ever due to the growing contribution of renewable energy sources. This situation has arisen because of the electromechanical decoupling between renewable generation sources and the main grid caused by their connection
through power electronic converters. This paper designs two synthetic inertia controllers that adhere to the grid code requirements from two different countries and then to utilize them to aid in the integration of high levels of wind power penetration in a test power system. The controllers are designed for a full converter wind turbine generator and are validated in an EMT real-time simulation with isolated testing at different wind speeds and different wind power penetration. The role of synchronous inertia in maintaining frequency stability is also explored through the use of synchronous condensers. Finally, the economic aspect of inertia is discussed, using the real-world example of the Bornholm island power system.
Original languageEnglish
JournalIEEE Access
Number of pages10
ISSN2169-3536
Publication statusAccepted/In press - 2021

Keywords

  • Converter-dominated systems
  • Frequency stability
  • Synthetic inertia
  • Synchronous condenser
  • Wind power plant

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